Read an ini config file with configparser python tutorial

# reading ini config files with `configparser` in python

the `configparser` module in python is a powerful tool for reading and writing configuration files in the ini format. ini files are simple text files used to store configuration settings and are structured in a way that is easy to read and edit. each configuration file consists of sections, each containing key-value pairs.

## structure of an ini file

an ini file typically looks like this:

## using `configparser`

### 1. importing the module

to use `configparser`, you first need to import it:

### 2. creating a configparser object

you can create a `configparser` object which will allow you to work with the ini file:

### 3. reading an ini file

to read an ini file, use the `read` method:

### 4. accessing data

once the ini file is read, you can access its data using the section and key names. here’s how:

### 5. iterating through sections and keys

you can also iterate through the sections and their keys:

### 6. writing to an ini file

you can modify the configuration and write it back to the ini file:

## complete example

here’s a complete example that reads from an ini file, prints its contents, modifies a value, and then writes the changes back to the file.

### python code

### explanation of the code:

1. **importing configparser**: the code starts by importing the `configparser` module.
2. **creating a configparser object**: an instance of `configparser` is created.
3. **reading the ini file**: the ini file is read into the `config` object.
4. **printing original values**: the original values from the ini file are printed.
5. **modifying and adding keys**: a key is modified, and a new key is added.
6. **writing back to the ini file**: the modified configuration is written back to the original ini file.
7. **printing modified values**: finally, the modified values are printed to confirm the changes.

## conclusion

the `configparser` module ma ...

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